On Fri, Apr 28, 2023 at 07:07:31AM -0700, Guenter Roeck wrote:
> Hi Greg,
>
> Observed with Ubuntu-22.04:
>
> In v5.10.y and older kernels, perf may fail to compile with the following error.
>
> In file included from util/evlist.h:6,
> from builtin-sched.c:6:
> builtin-sched.c: In function ‘create_tasks’:
> tools/include/linux/kernel.h:45:17: error: comparison of distinct pointer types lacks a cast [-Werror]
> 45 | (void) (&_max1 == &_max2); \
> | ^~
> builtin-sched.c:662:13: note: in expansion of macro ‘max’
> 662 | (size_t) max(16 * 1024, PTHREAD_STACK_MIN));
>
> The problem is fixed upstream with commit d08c84e01afa ("perf sched: Cast PTHREAD_STACK_MIN
> to int as it may turn into sysconf(__SC_THREAD_STACK_MIN_VALUE)". Please apply this commit
> to v5.10.y and older kernel branches.
Now queued up, thanks,
greg k-h
